Patents
Sitemap › H04 - Electric communication technique › H04Q - Selecting › H04Q 1 - Details of selecting apparatus or arrangements
Patents for H04Q 1 - Details of selecting apparatus or arrangements (11,745)
01/1997
01/22/1997CN2245837Y Super-thin double-card safety wiring line
01/21/1997US5596269 Apparatus and method for testing electrical switch matrices
01/16/1997WO1997001938A1 Main distribution board for a telecommunications facility
01/14/1997US5593317 Modular furniture communication system
01/14/1997CA2068154C Programmable call progress tones for a switching system
01/09/1997WO1996033582A3 Transmission system with improved tone detection
01/09/1997WO1996033581A3 Transmission system with improved tone detection
01/07/1997US5592545 Voice enhancement system and method
01/07/1997US5592544 DTMF signal judging apparatus
01/07/1997CA2180623A1 Broadcasting antenna network
01/07/1997CA2097636C Universal patch panel for communications use in buildings
01/02/1997EP0750823A1 Test port for network interface device module
01/01/1997CN2244273Y Full engaged safety group socket
12/1996
12/31/1996US5588869 Telecommunications terminal block
12/31/1996US5588182 Arrangement for securing a door to an enclosure
12/25/1996CN1138789A Method in communications system for providing out-of band signaling response based on predetermined conditions
12/25/1996CN1138786A Full electronic exchanger dual complex bus data receiving device and method
12/24/1996US5588053 DTMF detector system and method which performs static and dynamic thresholding
12/24/1996US5588052 DTMF signal judging apparatus
12/18/1996EP0749230A1 Method and device for detecting the presence of a periodic signal in a set of signals
12/18/1996EP0748568A1 Extensible communications switching installation
12/18/1996CN2243153Y Security unit for telephone main distribution support
12/18/1996CN2243152Y Housing of security unit
12/17/1996US5586012 Vertical organizer comprised of two sections joined together by a splice and secured between two relay racks
12/12/1996DE19535774C1 Contact component for distributor in telecommunication device
12/11/1996EP0748103A2 Device and method for control of functions
12/11/1996EP0748101A2 System and apparatus for generating within the premises a dial tone for enhanced phone services
12/11/1996CN2242555Y Distribution frame for high desity optical fiber
12/10/1996US5583933 Method and apparatus for the secure communication of data
12/10/1996US5583932 Combination telephone network interface and cable television apparatus
12/10/1996US5583931 Combination telephone network interface and coaxial cable apparatus and coaxial cable module
12/10/1996US5582525 Drop and insert card
12/05/1996WO1996038884A1 Telecommunication jack module with interchangeable back plane
12/05/1996DE19520184A1 Telecommunications system with electronic exchange for public network
12/04/1996EP0746170A2 Tone detector with improved performance in the presence of speech
12/03/1996US5581688 Tele- and data communication system
11/1996
11/28/1996WO1996037929A1 Switching coax jack with amplified monitor
11/28/1996DE19519105A1 Jumper wire installation tool for telecommunications splitter
11/27/1996CN2241422Y Full-clamped stratified jumper zone module
11/20/1996EP0743714A2 Mounting of protectors in connector blocks
11/20/1996EP0743710A1 Connector module with test and jumper access
11/20/1996EP0743707A1 Connector modules
11/20/1996EP0743700A2 Insulation displacement terminal with two-wire insertion capability
11/20/1996CN1136261A Audible tone signal service apparatus and method of digital mobile services switching center
11/20/1996CN1136253A Improved trouble alarm collecting device for electronic telephone exchanger
11/19/1996US5576603 Automatic distribution device for telecommunication and data lines
11/19/1996US5575689 Connector modules
11/19/1996US5575665 Patch panel with hinged tie bar
11/19/1996CA2081506C Telecommunications service provision equipment transfer
11/18/1996CA2175955A1 Insulation displacement terminal with two-wire insertion capability
11/18/1996CA2175947A1 Mounting of protectors in connector blocks
11/14/1996WO1996036187A1 Impulse signal convertor
11/12/1996US5574770 Method for controlling overload of main processor of distributed switching system with hierarchy structure
11/12/1996US5574614 Protection plug
11/06/1996EP0740803A1 High-density fiber distribution frame
11/05/1996US5572588 Method and apparatus for detecting reception of a tone signal
11/05/1996US5572348 Universal demarcation point
11/05/1996US5571029 Insulation displacement connector
10/1996
10/31/1996WO1996034497A1 Automatic mdf apparatus
10/31/1996WO1996034432A1 Connection device for switching electrical signals
10/31/1996CA2217324A1 Connection device for switching electrical signals
10/30/1996EP0739565A1 Subscriber line impedance measurement device and method
10/30/1996EP0653137B1 Rack designed to hold subscriber-station assemblies
10/30/1996EP0636303B1 Assembly for a distributor rack in a telecommunications network
10/29/1996US5570466 Multiple path trees and lan segments for routing in a network of bridge-connected lan segments
10/29/1996US5570422 Telephone network interface device
10/24/1996WO1996033582A2 Transmission system with improved tone detection
10/24/1996WO1996033581A2 Transmission system with improved tone detection
10/24/1996WO1996033580A1 Telephone exchange related main distribution arrangement
10/24/1996CA2215041A1 Telephone exchange related main distribution arrangement
10/22/1996US5566836 Telecommunication relay rack
10/17/1996WO1996032817A1 Transmission of voice-frequency signals in a mobile telephone system
10/17/1996DE19535773C1 Connection of electrical leads to distributor of telecommunication device
10/17/1996DE19532184C1 Contact device for telecommunications distributor
10/17/1996DE19524019C1 Automated distributor for telecommunications system
10/17/1996CA2211137A1 Transmission of voice-frequency signals in a mobile telephone system
10/16/1996EP0655168B1 Improved cross connect system for telecommunications systems
10/16/1996CN1133653A Rack for switching cabinets
10/16/1996CN1133536A Tracing system for cross connection wire
10/16/1996CN1133522A Automatic defect detecting mechanism for techician carried test and communication device
10/08/1996US5563942 Digital call progress tone detection method with programmable digital call progress tone detector
10/08/1996US5563761 Transient voltage surge protection assembly for telecommunications lines
10/08/1996US5562491 Gel filled electrical connector
10/08/1996CA2088629C Ringing tone signal detecting circuit
10/08/1996CA2058120C Method and system for making bipolar switching to protection channel
10/01/1996US5561700 Device for measuring analog telephony signals
09/1996
09/28/1996CA2171076A1 Method for preventing fraud in an inband signalling telephony system and trunk module realizing such a method
09/26/1996WO1996029764A1 Cross-connect method and apparatus
09/26/1996WO1996029759A1 Add-on mtu assembly for use in a telephone subscriber junction box
09/26/1996WO1996025824A3 Universal demarcation point
09/26/1996CA2214890A1 Cross-connect method and apparatus
09/25/1996EP0734188A2 Multistage connection switch and extension method
09/25/1996EP0734185A2 DTMF tone transmission in a voice communication system
09/25/1996EP0734104A1 Connection block for high rate lines and resulting connection assembly
09/25/1996CN2236201Y Patch plate with telephone wire outlet having multiple holes
09/25/1996CN1131830A Modular cross-connect system
09/18/1996EP0732024A1 Voice enhancement system and method
09/18/1996CN1131375A Protector for telephone set
09/17/1996US5557250 Telecommunications terminal block
09/17/1996US5556296 Asymmetric contact and terminal strip equipped with such contacts
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